If `cos theta + sintheta = sqrt2 cos theta`; show that `costheta- sintheta = sqrt2 sintheta`

If costheta +sintheta =sqrt2costheta , show that costheta -sintheta =sqrt2sintheta .

If costheta+sintheta=sqrt2costheta ,then show that costheta-sintheta=sqrt2 sintheta .

If cos theta -sin theta =sqrt(2) sin theta , show that, costheta+sintheta=sqrt(2) cos theta [0ltthetaltpi/2] .

If costheta+sintheta=sqrt(2)costheta, show that costheta-sintheta=sqrt(2)sintheta

If costheta+sintheta=sqrt(2)costheta, show that costheta-sintheta=sqrt(2)sintheta

If costheta+sintheta=sqrt(2)costheta, show that costheta-sintheta=sqrt(2)sintheta

If costheta+sintheta=sqrt(2)costheta, show that costheta-sintheta=sqrt(2)sintheta

If costheta +sin theta= sqrt(2)cos theta , then prove that costheta-sintheta =sqrt(2)sin theta

if costheta+sintheta=sqrt2 costheta, prove that costheta-sintheta=sqrt2sintheta

Let P = [theta : sintheta – costheta = sqrt2 costheta) andQ= {theta : sintheta + costheta = sqrt2 sintheta} be two sets. Then: